5. If a person eats a salmon (that ate

A man with normal vision marries a color-blind woman. Red-green color blindness is an X- linked recessive disorder. They have a

jeyben [28]

Answer: The probability is 100%.

Explanation: The chromosome X is related to gender. A man carries two different chromosomes (XY) and a woman carries two similar chromosomes (XX). The offspring of a couple will inherited:

If it is a boy, he inherites the chromosome Y from his father and X from his mother;
If it a girl, she inherites X from her father and X from her mother;

In the question, the woman is color-blind, which means she carries the recessive alleles: $X^{d}X^{d}$

The man, on the other hand, is normal, so his X-linked genotype will be: $X^{D}Y$ .

Now, since they have a daughter, she inherited her double X from each of her parents, which means she inherited one $X^{d}$ from her mother and one $X^{D}$ from her father.

So, the daughter's genotype can only be heterozygotic $X^{D}$ $X^{d}$ in other words, the probability is 100%.

5 0

4 years ago

Which is the closest estimate of the number of starts present in a galexy

lesya [120]

Answer:

The estimates I've read are similar to yours: 200 to 400 billion stars. Counting the stars in the galaxy is inherently difficult because, well, we can't see all of them.

Explanation:

8 0

2 years ago

What is the difference between threatened, extinct, and endangered animal species?

tankabanditka [31]

Answer:

Explanation:

Well extinct means like the no mo species and endangered means that they are a low number of species and threatened means they face extinction

5 0

3 years ago

Why is industrial society inherently unsustainable

natka813 [3]

I feel like this question is biased, but the current industrial society is unsustainable if, and only if there where no technological advancements, and we did nothing about climate change meaning we don’t move our cities and re locate we just burn fossil fuels then drown, but I feel this is a false dichotomy as we’ve already gone to far to go back are only real solution as a society is to use the tools that got us here to get us out of this rut climate change is inevitable even if everybody in earth never started another fire and never burnt another ounce of coal, petroleum, oil, etc

7 0

3 years ago

A population of wild-flowers was scored for flower color. There were 302 blue (BB) plants, 1857 violet (BR) plants and 811 red (

Lina20 [59]

Answer:

Explanation:

Hardy and Weinberg described all the possible genotypes for a gene with two alleles. The binomial expansion representing this is, p2 + 2pq + q2 = 1.0

Where,

p2 = proportion of homozygous dominant individuals (BB) = 313

q2 = proportion of homozygous recessive individuals (RR) = 857

2pq = proportion of heterozygotes (BR) = 1820

The proportion of BB individuals in the population is = 313/2990 = 0.1046

The proportion of BR individuals in the population is = 1820/2990 = 0.6086

The proportion of RR individuals in the population is = 2/82 = 0.2866

I).

a). The frequency of p allele in the population is, (B) = p2 + 1/2(2pq) = 0.1046 + ½ (0.6086) = 0.4089

b). The frequency of q allele in the population is, (R) = q2 + 1/2(2pq) = 0.2866 + ½ (0.6086) = 0.5909.

II).

The expected number of individuals with the BB genotype = 0.4089* 0.4089 = 0.1671*2990 = 499.6 = 500

The expected number of individuals with the BR genotype = 2*0.4089* 0.5909 = 0.4832*2990 = 1444.768 = 1445

The expected number of individuals with the RR genotype = 0.5909*0.5909 = 0.3491*2990 = 1043.809 = 1044

CHI - SQUARE (X2):

X2 = Σ(O - E)2 / E

Where O = Observed frequency

E = Expected frequency

Phenotype O E (O-E) (O-E)^2 (O-E)^2/E

BB 313 500 -187 34969 69.938

BR 1820 1445 375 140625 97.31834

RR 857 1044 1.5 2.25 0.155172

2990 2989 189.5 167.4115

The calculated Chi-square value is = 167.4115

Degrees of freedom is = n-1 = 3-1 = 2

The P-value is < 0.00001, which is significant at p < 0.05. So, we reject the null hypothesis.

Conclusion: There is a significant difference between the observed and expected values.

5 0

3 years ago